Total pressure fluctuations and two-phase flow turbulence in hydraulic jumps

Wang, Hang, Murzyn, Frederic and Chanson, Hubert (2014) Total pressure fluctuations and two-phase flow turbulence in hydraulic jumps. Experiments in Fluids, 55 11: 1847.1-1847.16. doi:10.1007/s00348-014-1847-9

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Author Wang, Hang
Murzyn, Frederic
Chanson, Hubert
Title Total pressure fluctuations and two-phase flow turbulence in hydraulic jumps
Journal name Experiments in Fluids   Check publisher's open access policy
ISSN 0723-4864
1432-1114
Publication date 2014-11-05
Year available 2014
Sub-type Article (original research)
DOI 10.1007/s00348-014-1847-9
Open Access Status File (Author Post-print)
Volume 55
Issue 11
Start page 1847.1
End page 1847.16
Total pages 16
Place of publication Heidelberg, Germany
Publisher Springer
Collection year 2015
Language eng
Abstract The large-scale turbulence and high air content in a hydraulic jump restrict the application of many traditional flow measurement techniques. This paper presents a physical modelling of hydraulic jump, where the total pressure and air–water flow properties were measured simultaneously with intrusive probes, namely a miniature pressure transducer and a dual-tip phase-detection probe, in the jump roller. The total pressure data were compared to theoretical values calculated based upon void fraction, water depth and flow velocity measured by the phase-detection probe. The successful comparison showed valid pressure measurement results in the turbulent shear region with constant flow direction. The roller region was characterised by hydrostatic pressure distributions, taking into account the void fraction distributions. The total pressure fluctuations were related to both velocity fluctuations in the air–water flow and free-surface dynamics above the roller, though the time scales of these motions differed substantially.
Keyword Hydraulic jumps
Total pressure
Turbulence
Two-phase flow
Pressure distributions
Physical modelling
Total pressure probe
Q-Index Code C1
Q-Index Status Confirmed Code
Institutional Status UQ

Document type: Journal Article
Sub-type: Article (original research)
Collections: School of Civil Engineering Publications
Official 2015 Collection
 
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Citation counts: TR Web of Science Citation Count  Cited 6 times in Thomson Reuters Web of Science Article | Citations
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Created: Thu, 13 Nov 2014, 05:45:50 EST by Hubert Chanson on behalf of School of Civil Engineering